---
id: CVE-2026-73198
title: A flaw was found in FreeIPA
summary: >-
  A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit a
  vulnerability in the `/ipa/i18n_messages` endpoint by sending an arbitrarily
  large request body. This can cause the service to consume excessive memory,
  leadin…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-770
vendor: freeipa
product: freeipa
affected:
  - enterprise_linux = 6.0
  - enterprise_linux = 7.0
  - enterprise_linux = 8.0
  - enterprise_linux = 9.0
  - enterprise_linux = 10.0
  - freeipa < 4.13.3
patched:
  - freeipa 4.13.3
published: '2026-08-20'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T06:17:04.197'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73198'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:70564'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:72279'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:82935'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:83083'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:83084'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:83085'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:83460'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:83461'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-73198'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2472960'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73198.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-73198'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73198'
  - url: 'https://access.redhat.com/errata/RHSA-2026:89836'
    label: 'RHSA-2026:89836'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.0054
epssPercentile: 0.4521
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-08-20T15:37:51.867680Z'
ingestedAt: '2026-09-24T03:37:24.187Z'
---

## Overview

A flaw was found in FreeIPA. A remote, unauthenticated attacker can exploit a vulnerability in the `/ipa/i18n_messages` endpoint by sending an arbitrarily large request body. This can cause the service to consume excessive memory, leading to memory exhaustion, degraded responsiveness, and a denial of service (DoS) condition.

## Affected

- `enterprise_linux = 6.0`
- `enterprise_linux = 7.0`
- `enterprise_linux = 8.0`
- `enterprise_linux = 9.0`
- `enterprise_linux = 10.0`
- `freeipa < 4.13.3`

## Remediation

Upgrade past the affected range:

- `freeipa 4.13.3`

## Vendor advisories

- **RHSA-2026:70564** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) · released 2026-09-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:70564)
- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 6 · no fix planned: Red Hat Enterprise Linux 6 · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73198.json)
- **RHSA-2026:82935** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:82935)
- **RHSA-2026:72279** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-09-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:72279)
- **RHSA-2026:83460** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-10-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:83460)
- **RHSA-2026:83461** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · released 2026-10-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:83461)
- **RHSA-2026:83085** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2) · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:83085)
- **RHSA-2026:83084** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4) · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:83084)
- **RHSA-2026:83083** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat CodeReady Linux Builder EUS (v.9.6) · released 2026-10-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:83083)